img, a {
  border: 0;
}
#on {
  visibility: visible;
}
#off {
  visibility: hidden;
}
#facebook_div {
  width: 196px;
  height: 340px;
  overflow: hidden;
}
#twitter_div {
  width: 246px;
  height: 240px;
  overflow: hidden;
}
#google_plus_div {
  width: 290px;
  height: 250px;
  overflow: hidden;
  margin-left: 5px;
  margin-top: 1px;
}
#NBT_div {
  width: 300px;
  height: 97px;
  overflow: hidden;
}
/* right side style */
 #facebook_right {
  z-index: 10005;
  border: 2px solid #3c95d9;
  background-color: #fff;
  width: 196px;
  height: 353px;
  position: fixed;
  right: -200px;
}
#facebook_right img {
  position: absolute;
  top: -2px;
  left: -35px;
}
#facebook_right iframe {
  border: 0px solid #3c95d9;
  overflow: hidden;
  position: static;
  height: 360px;
  left: -2px;
  top: -3px;
}
#twitter_right {
  z-index: 10004;
  border: 2px solid #6CC5FF;
  background-color: #6CC5FF;
  width: 246px;
  height: 240px;
  position: fixed;
  right: -250px;
}
#twitter_right_img {
  position: absolute;
  top: -2px;
  left: -35px;
  border: 0;
}
#google_plus_right {
  z-index: 10003;
  background-color: #F2F2F2;
  border: 2px solid #006ec9;
  border-top: 2px solid #0056a0;
  border-bottom: 2px solid #0056a0;
  border-right: 2px solid #0056a0;
  border-left: 2px solid #0056a0;
  width: 290px;
  height: 250px;
  position: fixed;
  right: -294px;
}
#google_plus_right_img {
  position: absolute;
  top: -2px;
  left: -33px;
  border: 0;
}
#NBT_right {
  z-index: 10003;
  border: 2px solid #303030;
  background-color: #fff;
  width: 300px;
  height: 97px;
  position: fixed;
}
#NBT_right img {
  position: absolute;
  top: -2px;
  left: -101px;
}
/* left side style */
 #facebook_left {
  z-index: 10005;
  border: 2px solid #3c95d9;
  background-color: #fff;
  width: 196px;
  height: 250px;
  position: fixed;
  left: -200px;
}
#facebook_left img {
  position: absolute;
  top: -2px;
  right: -35px;
}
#facebook_left iframe {
  border: 0px solid #3c95d9;
  overflow: hidden;
  position: static;
  height: 360px;
  right: -2px;
  top: -3px;
}
#twitter_left {
  z-index: 10004;
  border: 2px solid #6CC5FF;
  background-color: #6CC5FF;
  width: 246px;
  height: 250px;
  position: fixed;
  left: -250px;
}
#twitter_left_img {
  position: absolute;
  top: -2px;
  right: -35px;
  border: 0;
}
#google_plus_left {
  z-index: 10003;
  background-color: #006ec9;
  border: 2px solid #006ec9;
  border-top: 2px solid #0056a0;
  border-bottom: 2px solid #0056a0;
  border-left: 2px solid #0056a0;
  border-right: 2px solid #0056a0;
  width: 290px;
  height: 250px;
  position: fixed;
  left: -294px;
}
#google_plus_left_img {
  position: absolute;
  top: -2px;
  right: -33px;
  border: 0;
}